After the massive manhunt, they’ve written this off to the usual lone wolf....
http://www.foxnews.com/us/2016/07/29/1-san-diego-cop-killed-another-wounded-in-shooting.html
Cops were in drug unit and had a traffic stop when they were shot at and requested back up. There is a standoff now with SWAT surrounding a house in Southcrest. Might be the 2nd perp.